Granted Patent
Utility
US 4,476,240 · App. 06/394,066
Catalyst system containing an anionic initiator based on lithium and phosphine oxide modifier
Inventors:
James E. Hall, Donald N. Schulz
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jul 1, 1982
Inventors
James E. Hall
Donald N. Schulz
Assignee (at issue)
The Firestone Tire & Rubber Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.